AppMarket24.com

PayMaster is a client-side, mobile-first web application designed for tracking Hire Purchase agreements. It operates as a freemium Progressive Web App (PWA) with a strong emphasis on local privacy (device storage) and offline functionality. The app features a robust lock screen for security, an integrated payment schedule with reminders, data visualization via charts, and a monetization flow via MTN Mobile Money (MoMo) verification through Google Apps Script. It includes a "Pro" upgrade unlock system that limits free usage to 5 entries before requiring a one-time payment.